(a) Acetal resins production applicability, definitions, and requirements--(1) Applicability--(i) Affected source. For the acetal resins production source category (as defined in paragraph (a)(2) of this section), the affected source shall comprise all emission points, in combination, listed in paragraphs (a)(1)(i)(A) through (D) of this section, that are associated with an acetal resins production process unit located at a major source, as defined in section 112(a) of the Clean Air Act (Act).
(1) Applicability--(i) Affected source. For the acetal resins production source category (as defined in paragraph (a)(2) of this section), the affected source shall comprise all emission points, in combination, listed in paragraphs (a)(1)(i)(A) through (D) of this section, that are associated with an acetal resins production process unit located at a major source, as defined in section 112(a) of the Clean Air Act (Act).
(i) Affected source. For the acetal resins production source category (as defined in paragraph (a)(2) of this section), the affected source shall comprise all emission points, in combination, listed in paragraphs (a)(1)(i)(A) through (D) of this section, that are associated with an acetal resins production process unit located at a major source, as defined in section 112(a) of the Clean Air Act (Act).
(A) All storage vessels that store liquids containing organic HAP. For purposes of regulation, surge control vessels and bottoms receivers that are located as part of the process train prior to the polymer reactor are to be regulated under the front-end process vent provisions.
(B) All process vents from continuous unit operations (front end process vents and back end process vents).
(C) All wastewater streams associated with the acetal resins production process unit as defined in (a)(2) of this section.
(D) Equipment (as defined in Sec. 63.1101 of this subpart) that contains or contacts organic HAP.
(ii) Compliance schedule. The compliance schedule for affected sources as defined in paragraph (a)(1)(i) of this section is specified in Sec. 63.1102(a).
(2) Definitions.
Acetal resins production means the production of homopolymers and/or copolymers of alternating oxymethylene units. Acetal resins are also known as polyoxymethylenes, polyacetals, and aldehyde resins. Acetal resins are generally produced by polymerizing formaldehyde (HCHO) with the methylene functional group (CH2) and are characterized by repeating oxymethylene units (CH2O) in the polymer backbone.
Back end process vent means any process vent from a continuous unit operation that is not a front end process vent up to the final separation of raw materials and by-products from the stabilized polymer.
Front end process vent means any process vent from a continuous unit operation involved in the purification of formaldehyde feedstock for use in the acetal homopolymer process. All front end process vents are restricted to those vents that occur prior to the polymer reactor.
(3) Requirements. Table 1 of this section specifies the acetal resins production standards applicability for existing and new sources. Applicability assessment procedures and methods are specified in Sec. Sec. 63.1104 through 63.1107. An owner or operator of an affected source is not required to perform tests, TRE calculations or other applicability assessment procedures if they opt to comply with the most stringent requirements for an applicable emission point pursuant to this subpart. General compliance, recordkeeping, and reporting requirements are specified in Sec. Sec. 63.1108 through 63.1112. Procedures for approval of alternative means of emission limitations are specified in Sec. 63.1113. The owner or operator must control organic HAP emissions from each affected source emission point by meeting the applicable requirements specified in table 1 of this section.
Table 1 to Sec. 63.1103(a)--What Are My Requirements If I Own Or
Operate An Acetal Resins Production Existing Or New Affected Source?------------------------------------------------------------------------
If you own or operate. . . And if. . . Then you must. . .------------------------------------------------------------------------1. A storage vessel with: 34 The maximum true a. Reduce emissions
cubic meters 17.1 kilopascals percent by venting
(for existing emissions through a
sources) or 11.7 kilopascals to any combination
(for new sources). of control devices
meeting the
requirements of
subpart SS
(national emission
standards for
closed vent
systems, control
devices, recovery
devices, and
routing to a fuel
gas system or a
process), as
specified in Sec.
63.982(a)(1)
(storage vessel
requirements) of
this part; or
b. Comply with the
requirements of
subpart WW
(national emission
standards for
storage vessels
(control level 2))
of this part.2. A front end process vent .................... a. Reduce emissions
from continuous unit of total organic
operations. HAP by using a
flare meeting the
requirements of
subpart SS of this
part; or
b. Reduce emissions
of total organic
HAP by 60 weight-
percent, or reduce
TOC to a
concentration of 20
parts per million
by volume,
whichever is less
stringent, by
venting emissions
through a closed
vent system to any
combination of
control devices
meeting the
requirements of
subpart SS, as
specified in Sec.
63.982(a)(2)
(process vent
requirements) of
this part.3. A back end process vent The vent stream has a. Reduce emissions
from continuous unit a TRE \a\ <1.0. of total organic
operations. HAP by using a
flare meeting the
requirements of
subpart SS of this
part; or
b. Reduce emissions
of total organic
HAP by 98 weight-
percent, or reduce
TOC to a
concentration of 20
parts per million
by volume,
whichever is less
stringent, by
venting emissions
through a closed
vent system to any
combination of
control devices
meeting the
requirements of
subpart SS, as
specified in Sec.
63.982(a)(2)
(process vent
requirements) of
this part; or
c. Achieve and
maintain a TRE
index value greater
than 1.0.4. A back end process vent 1.0 <=TRE \a\ <=4.0. Monitor and keep
from continuous unit records of
operations. equipment operating
parameters
specified to be
monitored under
subpart SS, Sec.
Sec.
63.990(c)(absorber,
condenser, and
carbon adsorber
monitoring) or
63.995(c) (other
noncombustion
systems used as a
control device
monitoring) of this
part.5. Equipment as defined The equipment Comply with the
under Sec. 63.1101. contains or requirements of
contacts =10 weight- (national emission
percent organic HAP standards for
\b\, and operates equipment leaks
<=300 hours per (control level 1))
year. or subpart UU
(national emission
standards for
equipment leaks
(control level 2))
of this part.6. An acetal resins The process Comply with the
production process unit wastewater stream requirements of
that generates process is a Group 1 or Sec. 63.1106(a).
wastewater. Group 2 wastewater
stream.7. An acetal resins The maintenance Comply with the
production process unit wastewater contains requirements of
that generates maintenance organic HAP. Sec. 63.1106(b).
wastewater.8. An item of equipment The item of Comply with the
listed in Sec. equipment meets the requirements in
63.1106(c)(1). criteria specified Table 35 of subpart
in Sec. G of this part.
63.1106(c)(1)
through (3) and
either (c)(4)(i) or
(ii).------------------------------------------------------------------------\a\ The TRE is determined according to the procedures specified in Sec.
63.1104(j).\b\ The weight-percent organic HAP is determined for equipment according
to procedures specified in Sec. 63.1107.
(b) Acrylic and modacrylic fiber production applicability, definitions, and requirements--(1) Applicability--(i) Affected source. For the acrylic fibers and modacrylic fibers production (as defined in paragraph (b)(2) of this section) source category, the affected source shall comprise all emission points, in combination, listed in paragraphs (b)(1)(i)(A) through (E) of this section, that are associated with a suspension or solution polymerization process unit that produces acrylic and modacrylic fiber located at a major source as defined in section 112(a) of the Act.
(1) Applicability--(i) Affected source. For the acrylic fibers and modacrylic fibers production (as defined in paragraph (b)(2) of this section) source category, the affected source shall comprise all emission points, in combination, listed in paragraphs (b)(1)(i)(A) through (E) of this section, that are associated with a suspension or solution polymerization process unit that produces acrylic and modacrylic fiber located at a major source as defined in section 112(a) of the Act.
(i) Affected source. For the acrylic fibers and modacrylic fibers production (as defined in paragraph (b)(2) of this section) source category, the affected source shall comprise all emission points, in combination, listed in paragraphs (b)(1)(i)(A) through (E) of this section, that are associated with a suspension or solution polymerization process unit that produces acrylic and modacrylic fiber located at a major source as defined in section 112(a) of the Act.
(A) All storage vessels that store liquid containing acrylonitrile or organic HAP.
(B) All process vents from continuous unit operations.
(C) All wastewater streams associated with the acrylic and modacrylic fibers production process unit as defined in (b)(2) of this section.
(D) Equipment (as defined in Sec. 63.1101 of this subpart) that contains or contacts acrylonitrile or organic HAP.
(E) All acrylic and modacrylic fiber spinning lines using a spinning solution or suspension having organic acrylonitrile or organic HAP. For the purposes of implementing this paragraph, a spinning line includes the spinning solution filters, spin bath, and the equipment used downstream of the spin bath to wash, dry, or draw the spun fiber.
(ii) Compliance schedule. The compliance schedule, for affected sources as defined in paragraph (b)(1)(i) of this section, is specified in Sec. 63.1102.
(2) Definitions.
Acrylic fiber means a manufactured synthetic fiber in which the fiber-forming substance is any long-chain synthetic polymer composed of at least 85 percent by weight of acrylonitrile units.
Acrylic and modacrylic fibers production means the production of either of the following synthetic fibers composed of acrylonitrile units:
(i) Acrylic fiber.
(ii) Modacrylic fiber.
Acrylonitrile solution polymerization means a process where acrylonitrile and comonomers are dissolved in a solvent to form a polymer solution (typically polyacrylonitrile). The polyacrylonitrile is soluble in the solvent. In contrast to suspension polymerization, the resulting reactor polymer solution (spin dope) is filtered and pumped directly to the fiber spinning process.
Acrylonitrile suspension polymerization means a polymerization process where small drops of acrylonitrile and comonomers are suspended in water in the presence of a catalyst where they polymerize under agitation. Solid beads of polymer are formed in this suspension reaction which are subsequently filtered, washed, refiltered, and dried. The beads must be subsequently redissolved in a solvent to create a spin dope prior to introduction to the fiber spinning process.
Fiber spinning line means the group of equipment and process vents associated with acrylic or modacrylic fiber spinning operations. The fiber spinning line includes (as applicable to the type of spinning process used) the blending and dissolving tanks, spinning solution filters, wet spinning units, spin bath tanks, and the equipment used downstream of the spin bath to wash, dry, or draw the spun fiber.
In organic hazardous air pollutant or in organic HAP service means, for acrylic and modacrylic fiber production affected sources, that a piece of equipment either contains or contracts a fluid (liquid or gas) that is at least 10 percent by weight of total organic HAP as determined according to the provisions of Sec. 63.180(d). The provisions of Sec. 63.180(d) also specify how to determine that a piece of equipment is not in organic HAP service.
Modacrylic fiber means a manufactured synthetic fiber in which the fiber-forming substance is any long-chain synthetic polymer composed of at least 35 percent by weight of acrylonitrile units but less than 85 percent by weight of acrylonitrile units.
Seal means, for acrylic and modacrylic fiber production affected sources complying with the requirements of Sec. 63.1033(b) or Sec. 63.167(a) on or after October 8, 2014, that instrument monitoring of the open-ended valve or line conducted according to the method specified in Sec. 63.1023(b) and, as applicable, Sec. 63.1023(c), or Sec. 63.180(b) and, as applicable, Sec. 63.180(c), indicates no readings of 500 parts per million or greater.
Spin dope means the liquid mixture of polymer and solvent that is fed to the spinneret to form the acrylic and modacrylic fibers.
(3) Requirements. An owner or operator of an affected source must comply with the requirements of paragraph (b)(3)(i) or (ii) of this section.
(i) Table 2 of this section specifies the acrylic and modacrylic fiber production source category control requirement applicability for both existing and new sources. Applicability assessment procedures and methods are specified in Sec. Sec. 63.1104 through 63.1107. An owner or operator of an affected source is not required to perform tests, or other applicability assessment procedures if they opt to comply with the most stringent requirements for an applicable emission point pursuant to this subpart. General compliance, recordkeeping, and reporting requirements are specified in Sec. Sec. 63.1108 through 63.1112. Procedures for approval of alternative means of emission limitations are specified in Sec. 63.1113. The owner or operator must control organic HAP emissions from each affected source emission point by meeting the applicable requirements specified in table 2 of this section. Table 2 to Sec. 63.1103(b)(3)(i)--What Are My Requirements if I Own or
Operate an Acrylic and Modacrylic Fiber Production Existing or New
Affected Source and Am Complying With Paragraph (b)(3)(i) of This
Section?------------------------------------------------------------------------
If you own or operate. . . And if. . . Then you must. . .------------------------------------------------------------------------1. A storage vessel......... The stored material a. Reduce emissions
contains organic of organic HAP by
HAP. 98 weight-percent
by venting
emissions through a
closed vent system
to any combination
of control device
meeting the
requirements of
subpart SS of this
part, as specified
in Sec.
63.982(a)(1)
(storage vessel
requirements), or
95 weight-percent
or greater by
venting through a
closed vent system
to a recovery
device meeting the
requirements of
subpart SS, Sec.
63.993 (recovery
device
requirements); or
b. Comply with the
requirements of
subpart WW of this
part.2. A process vent from The vent steam has a a. Reduce emissions
continuous unit operations mass emission rate of organic HAP or
(halogenated). of halogen atoms TOC as specified
contained in for nonhalogenated
organic compounds process vents from
=0.45 continuous unit
kilograms per operations (other
hour,\a\ and an than by using a
organic HAP flare) by venting
concentration =50 parts closed vent system
per million by to a halogen
volume \b\ and an reduction device
average flow rate meeting the
=0.005 requirements of
cubic meters per subpart SS of this
minute. part, Sec. 63.994
(halogen reduction
devices
requirements) that
reduces hydrogen
halides and
halogens by 99
weight-percent or
to less than 0.45
kilograms per year,
whichever is less
stringent; or
b. Reduce the
process vent
halogen atom mass
emission rate to
less than 0.45
kilograms per hour
by venting
emissions through a
closed vent system
to a halogen
reduction device
meeting the
requirements of
subpart SS of this
part, Sec. 63.994
(halogen reduction
devices
requirements) and
then complying with
the requirements
specified for
process vents from
continuous unit
operations
(nonhalogenated).3. A process vent from The vent steam has a a. Reduce emissions
continuous unit operations mass emission rate of organic HAP by
(nonhalogenated). of halogen atoms using a flare
contained in meeting the
organic compounds requirements of
<0.45 kilograms per subpart SS of this
hour,\a\ and an part, Sec. 63.987
organic HAP (flare
concentration =50 parts b. Reduce emissions
per million by of organic HAP by
volume \b\ and an 98 weight-percent,
average flow rate or reduce TOC to a
=0.005 concentration of 20
cubic meters per parts per million
minute. by volume,
whichever is less
stringent, by
venting emissions
through a closed
vent system to any
combination of
control devices
meeting the
requirements of
subpart SS of this
part, as specified
in Sec.
63.982(a)(2)
(process vent
requirements).4. A fiber spinning line The lines use a spin a. Reduce organic
that is a new or dope produced from HAP emissions by 85
reconstructed source. either a suspension weight-percent or
polymerization more. (For example,
process or solution you may enclose the
polymerization spinning and
process. washing areas of
the spinning line
(as specified in
paragraph (b)(4) of
this section) and
vent through a
closed vent system
and use any
combination of
control devices
meeting the
requirements of
subpart SS of this
part, as specified
in Sec.
63.982(a).); or
b. Reduce organic
HAP emissions from
the spinning line
to less than or
equal to 0.25
kilograms of
organic HAP per
megagram (0.5
pounds of organic
HAP per ton) of
acrylic and
modacrylic fiber
produced; or
c. Reduce the
organic HAP
concentration of
the spin dope to
less than 100 ppmw.5. A fiber spinning line The spinning line Reduce organic HAP
that is an existing source. uses a spin dope emissions from the
produced from a spinning line to
solution less than or equal
polymerization to 20 kilograms of
process. organic HAP per
megagram (40 pounds
of organic HAP per
ton) of acrylic and
modacrylic fiber
produced.6. A fiber spinning line The spinning line a. Reduce the
that is an existing source. uses a spin dope organic HAP
produced from a concentration of
suspension the spin dope to
polymerization less than 100 ppmw;
process. \b\ or
b. Reduce organic
HAP emissions from
the spinning line
to less than or
equal to 0.25
kilograms of
organic HAP per
megagram of acrylic
and modacrylic
fiber produced.7. Equipment as defined It contains or a. Comply with
under Sec. 63.1101 (with contacts =10 weight- 63.1008 or Sec.
pressure relief devices percent organic 63.1027 for
described in item 11 below). HAP,\c\ and connectors in gas
operates =300 hours per and in light liquid
year. service, and comply
with the
requirements of
subpart UU of this
part, except Sec.
63.1030, for all
other applicable
equipment; or
b. Comply with the
requirements in
subpart H of this
part, except Sec.
63.165, as provided
by the regulatory
overlap provisions
in Sec.
63.1100(g)(4)(ii).8. An acrylic and modacrylic The process Comply with the
fiber production process wastewater stream requirements of
unit that generates process is a Group 1 or Sec. 63.1106(a).
wastewater. Group 2 wastewater
stream.9. An acrylic and modacrylic The maintenance Comply with the
fiber production process wastewater contains requirements of
unit that generates organic HAP. Sec. 63.1106(b).
maintenance wastewater.10. An item of equipment The item of Comply with the
listed in Sec. equipment meets the requirements in
63.1106(c)(1). criteria specified Table 35 of subpart
in Sec. G of this part.
63.1106(c)(1)
through (3) and
either (c)(4)(i) or
(ii).11. Pressure relief devices. The pressure relief Comply with Sec.
device is in 63.1107(e).
organic HAP service.------------------------------------------------------------------------\a\ The mass emission rate of halogen atoms contained in organic
compounds is determined according to the procedures specified in Sec.
63.1104(i).\b\ The percent by weight organic HAP is determined according to the
procedures specified in Sec. 63.1107.\c\ The weight-percent organic HAP is determined for equipment according
to procedures specified in Sec. 63.1107.
(ii) The owner or operator must control organic HAP emissions from the acrylic and modacrylic fibers production facility by meeting the applicable requirements specified in table 3 of this section. The owner or operator must determine the facility organic HAP emission rate using the procedures specified in paragraph (b)(5) of this section. Applicability assessment procedures and methods are specified in Sec. Sec. 63.1104 through 63.1107. An owner or operator of an affected source does not have to perform tests, TRE calculations or other applicability assessment procedures if they opt to comply with the most stringent requirements for an applicable emission point pursuant to this subpart. General compliance, recordkeeping, and reporting requirements are specified in Sec. Sec. 63.1108 through 63.1112. Procedures for approval of alternative means of emission limitations are specified in Sec. 63.1113.
Table 3 to Sec. 63.1103(b)(3)(ii)--What Are My Requirements If I Own
or Operate an Acrylic and Modacrylic Fiber Production Existing or New
Affected Source and Am Complying With Paragraph (b)(3)(ii) of This
Section?------------------------------------------------------------------------
Then you must control total organic HAP
If you own or operate . . . emissions from the affected source by . .
.------------------------------------------------------------------------1. An acrylic and modacrylic Meeting all of following requirements:
fibers production affected a. Reduce total organic HAP emissions
source and your facility is from all affected storage vessels,
an existing source. process vents, wastewater streams
associated with the acrylic and
modacrylic fibers production process
unit as defined in paragraph (b)(2) of
this section, and fiber spinning lines
operated in your acrylic and modacrylic
fibers production facility to less than
or equal to 0.5 kilograms (kg) of
organic HAP per megagram (Mg) of fiber
produced.
b. Determine the facility organic HAP
emission rate in accordance with the
requirements specified in paragraph
(b)(5) of this section.2. An acrylic and modacrylic Meeting all of following requirements:
(5) of this section.2. An acrylic and modacrylic Meeting all of following requirements:
fibers production affected a. Reduce total organic HAP emissions
source and your facility is from all affected storage vessels,
a new source. process vents, wastewater streams
associated with the acrylic and
modacrylic fibers production process
unit as defined in paragraph (b)(2) of
this section, and fiber spinning lines
operated in your acrylic and modacrylic
fibers production facility to less than
or equal to 0.25 kilograms (kg) of
organic HAP per megagram (Mg) of fiber
produced.
b. Determine the facility organic HAP
emission rate in accordance with the
requirements specified in paragraph
(b)(5) of this section.3. Equipment as defined under a. Comply with either Sec. 63.1008 or
(5) of this section.3. Equipment as defined under a. Comply with either Sec. 63.1008 or
Sec. 63.1101 and it Sec. 63.1027 for connectors in gas and
contains or contacts 10 weight-percent service, and comply with subpart UU of
organic HAP,\a\ and operates this part, except Sec. 63.1030, for
300 hours per all other applicable equipment; or
year (with the differences b. Comply with the requirements in
for pressure relief devices subpart H of this part, except Sec.
described in item 4 below). 63.165, as provided by the regulatory
overlap provisions in Sec.
63.1100(g)(4)(ii).4. A pressure relief device Complying with Sec. 63.1107(e).
in organic HAP service.------------------------------------------------------------------------
(4) Fiber spinning line enclosure requirements. For an owner or operator of a new or modified source electing to comply with paragraph (b)(3)(i) of this section, the fiber spinning line enclosure must be designed and operated to meet the requirements specified in paragraphs (b)(4)(i) through (iv) of this section.
(i) The enclosure must cover the spinning and washing areas of the spinning line.
(ii) The enclosure must be designed and operated in accordance with the criteria for a permanent total enclosure as specified in ``Procedure T--Criteria for and Verification of a Permanent or Temporary Total Enclosure'' in 40 CFR 52.741, appendix B.
(iii) The enclosure may have permanent or temporary openings to allow worker access; passage of material into or out of the enclosure by conveyor, vehicles, or other mechanical means; entry of permanent mechanical or electrical equipment; or to direct airflow into the enclosure.
(iv) The owner or operator must perform the verification procedure for the enclosure as specified in section 5.0 to ``Procedure T--Criteria for and Verification of a Permanent or Temporary Total Enclosure'' initially when the enclosure is first installed and, thereafter, annually.
(5) Facility organic HAP emission rate determination. For an owner or operator electing to comply with paragraph (b)(3)(ii) of this section, the facility organic HAP emission rate must be determined using the requirements specified in paragraphs (b)(5)(i) through (iii) of this section.
(i) The owner or operator must prepare an initial determination of the facility organic HAP emission rate.
(ii) Whenever changes to the acrylic or modacrylic fiber production operations at the facility could potentially cause the facility organic HAP emission rate to exceed the applicable limit of kilogram of organic HAP per Megagram of fiber produced, the owner or operator must prepare a new determination of the facility organic HAP emission rate.
(iii) For each determination, the owner or operator must prepare and maintain at the facility site sufficient process data, emissions data, and any other documentation necessary to support the facility organic HAP emission rate calculation.
(c) Hydrogen fluoride production applicability, definitions, and requirements--(1) Applicability--(i) Affected source--For the hydrogen fluoride production (as defined in paragraph (c)(2) of this section) source category, the affected source shall comprise all emission points, in combination, listed in paragraphs (c)(1)(i)(A) through (D) of this section, that are associated with a hydrogen fluoride production process unit located at a major source as defined in section 112(a) of the Act.
(1) Applicability--(i) Affected source--For the hydrogen fluoride production (as defined in paragraph (c)(2) of this section) source category, the affected source shall comprise all emission points, in combination, listed in paragraphs (c)(1)(i)(A) through (D) of this section, that are associated with a hydrogen fluoride production process unit located at a major source as defined in section 112(a) of the Act.
(i) Affected source--For the hydrogen fluoride production (as defined in paragraph (c)(2) of this section) source category, the affected source shall comprise all emission points, in combination, listed in paragraphs (c)(1)(i)(A) through (D) of this section, that are associated with a hydrogen fluoride production process unit located at a major source as defined in section 112(a) of the Act.
(A) All storage vessels used to accumulate or store hydrogen fluoride.
(B) All process vents from continuous unit operations associated with hydrogen fluoride recovery and refining operations. These process vents include vents on condensers, distillation units, and water scrubbers.
(C) All transfer racks used to load hydrogen fluoride into tank trucks or railcars.
(D) Equipment in hydrogen fluoride service (as defined in paragraph (c)(2) of this section).
(2) Definitions.
Connector means flanged, screwed, or other joined fittings used to connect two pipelines or a pipeline and a piece of equipment. A common connector is a flange. Joined fittings welded completely around the circumference of the interface are not considered connectors for the purposes of this subpart.
Equipment means each pump, compressor, agitator, pressure relief device, sampling connection system, open-ended valve or line, valve, connector, and instrumentation system in hydrogen fluoride service; and any control devices or closed-vent systems used to comply with this subpart.
Hydrogen fluoride production means a process engaged in the production and recovery of hydrogen fluoride by reacting calcium fluoride with sulfuric acid. For the purpose of implementing this subpart, hydrogen fluoride production is not a process that produces gaseous hydrogen fluoride for direct reaction with hydrated aluminum to form aluminum fluoride (i.e., the hydrogen fluoride is not recovered as an intermediate or final product prior to reacting with the hydrated aluminum).
In hydrogen fluoride service means that a piece of equipment either contains or contacts a hydrogen fluoride process fluid (liquid or gas).
In vacuum service means that equipment is operating at an internal pressure which is at least 5 kilopascals below ambient pressure.
Instrumentation system means a group of equipment components used to condition and convey a sample of the process fluid to analyzers and instruments for the purpose of determining process operating conditions (e.g., composition, pressure, flow, etc.). Valves and connectors are the predominant type of equipment used in instrumentation systems; however, other types of equipment may also be included in these systems.
Kiln seal means the mechanical or hydraulic seals at both ends of the kiln, designed to prevent the infiltration of moisture and air through the interface of the rotating kiln and stationary pipes and equipment attached to the kiln during normal vacuum operation of the kiln (operation at an internal pressure of at least 0.25 kilopascal [one inch of water] below ambient pressure).
Leakless pump means a pump whose seals are submerged in liquid, a magnetically-driven pump, a pump equipped with a dual mechanical seal system that includes a barrier fluid system, a canned pump, or other pump that is designed with no externally actuated shaft penetrating the pump housing.
Open-ended valve or line means any valve, except relief valves, having one side of the valve seat in contact with process fluid and one side open to the atmosphere, either directly or through open piping.
Pressure release means the emission of materials resulting from the system pressure being greater than the set pressure of the relief device. This release can be one release or a series of releases over a short time period due to a malfunction in the process.
Pressure relief device or valve means a safety device used to prevent operating pressures from exceeding the maximum allowable working pressure of the process equipment. A common pressure relief device is a spring-loaded pressure relief valve. Devices that are actuated either by a pressure of less than or equal to 2.5 pounds per square inch gauge or by a vacuum are not pressure relief devices.
Relief device or valve means a valve used only to release an unplanned, nonroutine discharge. A relief valve discharge can result from an operator error, a malfunction such as a power failure or equipment failure, or other unexpected cause that requires immediate venting of gas from process equipment in order to avoid safety hazards or equipment damage.
Repaired for the purpose of this regulation means equipment is adjusted, or otherwise altered, to eliminate a leak identified by sensory monitoring.
Sampling connection system means an assembly of equipment within a process unit or affected facility used during periods of representative operation to take samples of the process fluid. Equipment used to take nonroutine grab samples is not considered a sampling connection system.
Sensory monitoring means the detection of a potential leak to the atmosphere by walk-through visual, audible, or olfactory monitoring. Comprehensive component-by-component inspection is not required.
Shift means the time a shift operator normally works, typically 8 or 12 hours.
(3) Requirements. Table 4 of this section specifies the hydrogen fluoride production source category applicability and control requirements for both existing and new sources. The owner or operator must control hydrogen fluoride emissions from each affected source emission point as specified in table 4. General compliance, recordkeeping, and reporting requirements are specified in Sec. Sec. 63.1108 through 63.1112. Specific monitoring, recordkeeping, and reporting requirements are specified in table 4. Minimization of emissions from startups, shutdowns, and malfunctions, including those resulting from kiln seals must be addressed in the startup, shutdown, and malfunction plan required by Sec. 63.1111; the plan must also establish reporting and recordkeeping of such events. Procedures for approval of alternative means of emission limitations are specified in Sec. 63.1113.
Table 4 to Sec. 63.1103(c)--What Are My Requirements If I Own or
Operate a Hydrogen Fluoride Production Existing or New Affected Source?------------------------------------------------------------------------
If you own or operate . . . And if . . . Then you must . . .------------------------------------------------------------------------1. A storage vessel......... The stored material Reduce emissions of
is hydrogen hydrogen fluoride
fluoride. by venting
displacement
emissions created
by normal filling
or emptying
activities through
a closed-vent
system to a
recovery system or
wet scrubber that
is designed and
operated to achieve
a 99 weight-percent
removal efficiency.
The minimum liquid
flow rate to the
scrubber that
achieves a 99
weight-percent
removal efficiency
shall be
established, and
may be done so by
design analysis.
The liquid flow
rate to the
scrubber shall be
continuously
monitored and
records maintained
according to Sec.
Sec. 63.996 and
63.998(b), (c), and
(d)(3) of 40 CFR
(3) of 40 CFR
subpart SS of this
part. The Periodic
Report specified in
Sec.
63.1110(a)(5) of
this subpart shall
include the
information
specified in Sec.
63.999(c) of 40 CFR
subpart SS of this
part, as
applicable.
2. A process vent from The vent stream is Reduce emissions of
continuous unit operations. from hydrogen hydrogen fluoride
fluoride recovery from the process
and refining vent by venting
vessels. emissions through a
closed-vent system
to a wet scrubber
that is designed
and operated to
achieve a 99 weight-
percent removal
efficiency.
Monitoring,
recordkeeping, and
reporting of wet
scrubber operation
shall be in
accordance with the
requirements stated
above for a wet
scrubber
controlling
hydrogen fluoride
emissions from a
storage vessel.3. A transfer rack.......... The transfer rack is Reduce emissions of
associated with hydrogen fluoride
bulk hydrogen by venting
fluoride liquid emissions through a
loading into tank closed-vent system
trucks and rail to a recovery
cars. system or wet
scrubber that is
designed and
operated to achieve
a 99 weight-percent
removal efficiency.
Monitoring,
recordkeeping, and
reporting of wet
scrubber operation
shall be in
accordance with the
requirements stated
above for a wet
scrubber
controlling HF
emissions from a
storage vessel. You
also must load
hydrogen fluoride
into only tank
trucks and railcars
that have a current
certification in
accordance with the
U.S. DOT pressure
test requirements
of 49 CFR part 180
for tank trucks and
49 CFR 173.31 for
railcars; or have
been demonstrated
to be vapor-tight
(i.e. will sustain
a pressure change
of not more than
750 Pascals within
5 minutes after it
is pressurized to a
minimum or 4,500
Pascals) within the
preceding 12
months.4. Equipment................ It is in hydrogen Control hydrogen
fluoride service fluoride emissions
and operates =300 hours pumps and by
per year and is not implementing a
in vacuum service. sensory monitoring
leak detection
program. Equipment
that is excluded
from sensory
monitoring because
it operates less
than 300 hours per
year or is in
vacuum service
shall be identified
by list, location,
or other method and
the identity shall
be recorded. An
owner or operator
is required to
perform sensory
monitoring at least
once every shift,
but no later than
within 15 days.
When a leak is
detected, repair
must begin within
one hour and be
completed as soon
as practical. A
record shall be
kept of each leak
detected and
repaired including:
equipment
identification
number, date and
time the leak was
detected and that
repair was
initiated, and the
date of successful
repair.------------------------------------------------------------------------
(d) Polycarbonate production applicability, definitions, and requirements--(1) Applicability--(i) Affected source. For the polycarbonate production (as defined in paragraph (d)(2) of this section) source category, the affected source shall comprise all emission points, in combination, listed in paragraphs (d)(1)(i)(A) through (D) of this section, that are part of a polycarbonate production process unit located at a major source as defined in section 112(a) of the Act. For the purposes of this rule, a polycarbonate production process unit is a unit that produces polycarbonate by interfacial polymerization from bisphenols and phosgene. Phosgene production units that are associated with polycarbonate production process units are considered to be part of the polycarbonate production process. A phosgene production unit consists of the reactor in which phosgene is formed and all equipment (listed in paragraphs (d)(1)(i)(A) through (D) of this section) downstream of the reactor that provides phosgene for the production of polycarbonate. Therefore, for the purposes of this rule, such a phosgene production unit is considered to be a polycarbonate production process unit.
(1) Applicability--(i) Affected source. For the polycarbonate production (as defined in paragraph (d)(2) of this section) source category, the affected source shall comprise all emission points, in combination, listed in paragraphs (d)(1)(i)(A) through (D) of this section, that are part of a polycarbonate production process unit located at a major source as defined in section 112(a) of the Act. For the purposes of this rule, a polycarbonate production process unit is a unit that produces polycarbonate by interfacial polymerization from bisphenols and phosgene. Phosgene production units that are associated with polycarbonate production process units are considered to be part of the polycarbonate production process. A phosgene production unit consists of the reactor in which phosgene is formed and all equipment (listed in paragraphs (d)(1)(i)(A) through (D) of this section) downstream of the reactor that provides phosgene for the production of polycarbonate. Therefore, for the purposes of this rule, such a phosgene production unit is considered to be a polycarbonate production process unit.
(i) Affected source. For the polycarbonate production (as defined in paragraph (d)(2) of this section) source category, the affected source shall comprise all emission points, in combination, listed in paragraphs (d)(1)(i)(A) through (D) of this section, that are part of a polycarbonate production process unit located at a major source as defined in section 112(a) of the Act. For the purposes of this rule, a polycarbonate production process unit is a unit that produces polycarbonate by interfacial polymerization from bisphenols and phosgene. Phosgene production units that are associated with polycarbonate production process units are considered to be part of the polycarbonate production process. A phosgene production unit consists of the reactor in which phosgene is formed and all equipment (listed in paragraphs (d)(1)(i)(A) through (D) of this section) downstream of the reactor that provides phosgene for the production of polycarbonate. Therefore, for the purposes of this rule, such a phosgene production unit is considered to be a polycarbonate production process unit.
(A) All storage vessels that store liquids containing organic HAP.
(B) All process vents from continuous and batch unit operations.
(C) All wastewater streams.
(D) Equipment (as defined in Sec. 63.1101 of this subpart) that contains or contacts organic HAP.
(ii) Compliance schedule. The compliance schedule, for affected sources as defined in paragraph (d)(1)(i) of this section, is specified in Sec. 63.1102.
(2) Definitions.
In organic hazardous air pollutant or in organic HAP service means, for polycarbonate production affected sources, that a piece of equipment either contains or contracts a fluid (liquid or gas) that is at least 5 percent by weight of total organic HAP as determined according to the provisions of Sec. 63.180(d). The provisions of Sec. 63.180(d) also specify how to determine that a piece of equipment is not in organic HAP service.
Polycarbonate production means a process engaged in the production of a special class of polyester formed from any dihydroxy compound and any carbonate diester or by ester exchange. Polycarbonate may be produced by solution or emulsion polymerization, although other methods may be used. A typical method for the manufacture of polycarbonate includes the reaction of bisphenol-A with phosgene in the presence of pyridine or other catalyst to form polycarbonate. Methylene chloride or other solvents are used in this polymerization reaction.
Seal means, for polycarbonate production affected sources complying with the requirements of Sec. 63.1033(b) or Sec. 63.167(a) or after October 8, 2014, that instrument monitoring of the open-ended valve or line conducted according to the method specified in Sec. 63.1023(b) and, as applicable, Sec. 63.1023(c), or Sec. 63.180(b) and, as applicable, Sec. 63.180(c), indicates no readings of 500 parts per million or greater.
(3) Requirements. Tables 5 and 6 of this section specify the applicability criteria and standards for existing and new sources within the polycarbonate production source category. The owner or operator must control organic HAP emissions from each affected source emission point by meeting the applicable requirements specified in tables 5 and 6. Applicability assessment procedures and methods are specified in Sec. Sec. 63.1104 through 63.1107. An owner or operator of an affected source is not required to perform tests, TRE calculations or other applicability assessment procedures if they opt to comply with the most stringent requirements for an applicable emission point pursuant to this subpart. General compliance, recordkeeping, and reporting requirements are specified in Sec. Sec. 63.1108 through 63.1112. Procedures for approval of alternative means of emission limitations are specified in Sec. 63.1113.
Table 5 to Sec. 63.1103(d)--What Are My Requirements If I Own or
Operate A Polycarbonate Production Existing Affected Source?------------------------------------------------------------------------
If you own or operate... And if... Then you must...------------------------------------------------------------------------1. A storage vessel with: 75 27.6 kilopascals Reduce emissions of
cubic meters <=capacity <=maximum true total organic HAP
<151 cubic meters. vapor pressure of by 95 weight-
total organic HAP percent by venting
<76.6 kilopascals. emissions through a
closed vent system
to any combination
of control devices
meeting the
requirements of
subpart SS
(national emission
standards for
closed vent
systems, control
devices, recovery
devices, and
routing to a fuel
gas system or a
process), as
specified in Sec.
63.982(a)(1)
(storage vessel
requirements) of
this part; or
comply with the
requirements of
subpart WW
(national emission
standards for
storage vessels
(control level 2))
of this part.2. A storage vessel with: The maximum true Reduce emissions of
151 cubic meters <=capacity. vapor pressure of total organic HAP
total organic HAP by 98 weight-
=5.2 percent by venting
kilopascals. emissions through a
closed vent system
to any combination
of control devices
meeting the
requirements of
subpart SS, as
specified in Sec.
63.982(a)(1)
(storage vessel
requirements) of
this part3. A storage vessel with: 75 The maximum true Reduce emissions of
cubic meters <=capacity vapor pressure of total organic HAP
<151 cubic meters. total organic HAP by 95 weight-
=76.6 percent by venting
kilopascals. emissions through a
closed vent system
to any combination
of control devices
meeting the
requirements of
subpart SS, as
specified in Sec.
63.982(a)(1)
(storage vessel
requirements) of
this part.4. A process vent from The vent stream has a. Reduce emissions
continuous unit operations a TRE \b\ \c\ <= of total organic
or a combined vent stream 2.7. HAP by 98 weight-
\a\ (halogenated). percent, or reduce
total organic HAP
to a concentration
of 20 parts per
million by volume,
whichever is less
stringent, by
venting emissions
through a closed
vent system to any
combination of
control devices
meeting the
requirements of
subpart SS of this
part, as specified
in Sec.
63.982(c)(2) and
(e); and then vent
emissions from
those control
device(s) through a
closed vent system
to a halogen
reduction device
meeting the
requirements of
subpart SS, Sec.
63.994, that
reduces hydrogen
halides and
halogens by 99
weight-percent or
to less than 0.45
kilograms per
hour,\d\ whichever
is less stringent;
or
b. Reduce the
process vent
halogen atom mass
emission rate to
less than 0.45
kilograms per hour
by venting
emissions through a
closed vent system
to a halogen
reduction device
meeting the
requirements of
subpart SS of this
part, Sec.
63.994; and then
vent emissions from
those control
device(s) through a
closed vent system
to any combination
of control devices
meeting the
requirements of
subpart SS, as
specified in Sec.
63.982(c)(2) and
(e), that reduces
emissions of total
organic HAP by 98
weight-percent, or
reduce total
organic HAP or TOC
to a concentration
of 20 parts per
million by volume,
whichever is less
stringent; or
c. Achieve and
maintain a TRE
index value greater
than 2.7.
5. A process vent from The vent stream has a. Reduce emissions
continuous unit operations a TRE \b\ \c\ <= of total organic
or a combined vent stream 2.7. HAP by 98 weight-
\a\ (nonhalogenated). percent; or reduce
total organic HAP
to a concentration
of 20 parts per
million by volume;
whichever is less
stringent, by
venting emissions
through a closed
vent system to any
combination of
control devices
meeting the
requirements of
subpart SS of this
part, as specified
in Sec.
63.982(a)(2)
(process vent
requirements); or
b. Achieve and
maintain a TRE
index value greater
than 2.7.6. A process vent from 2.7 < TRE \b\ \c\ <= Monitor and keep
continuous unit operations 4.0. records of
or a combined vent stream equipment operating
\a\. parameters
specified to be
monitored under
subpart SS of this
part, Sec. Sec.
63.982(e) and
63.993(c)
(absorbers,
condensers, carbon
adsorbers and other
recovery devices
used as final
recovery devices).7. Equipment as defined The equipment a. Comply with
under Sec. 63.1101 (with contains or either Sec.
the differences for contacts =5 weight- 63.1027 for
described in item 11 below). percent total connectors in gas
organic HAP,\e\ and and vapor service
operates =300 hours per service, and comply
year. with the
requirements of
subpart UU of this
part, except Sec.
63.1030, for all
other applicable
equipment; or
b. Comply with the
requirements in
subpart H of this
part, except Sec.
63.165, as provided
by the regulatory
overlap provisions
in Sec.
63.1100(g)(4)(ii).8. A polycarbonate The process Comply with the
production process unit wastewater stream requirements of
that generates process is a Group 1 or a Sec. 63.1106(a).
wastewater. Group 2 wastewater
stream.9. A polycarbonate The maintenance Comply with the
production process unit wastewater contains requirements of
that generates maintenance organic HAP. Sec. 63.1106(b).
wastewater.10. An item of equipment The item of Comply with the
listed in Sec. equipment meets the requirements in
63.1106(c)(1). criteria specified Table 35 of subpart
in Sec. G of this part.
63.1106(c)(1)
through (3) and
either (c)(4)(i) or
(ii).11. Pressure relief devices. The pressure relief Comply with Sec.
device is in 63.1107(e).
organic HAP service.------------------------------------------------------------------------\a\ Combined vent streams shall use the applicability determination
procedures and methods for process vents from continuous unit
operations (Sec. 63.1104).\b\ The TRE equation coefficients for halogenated streams (table 1 of
Sec. 63.1104(j)(1)) shall be used to calculate the TRE index value.\c\ The TRE is determined according to the procedures specified in Sec.
63.1104(j). If a dryer is manifolded with such vents, and the vent is
routed to a recovery, recapture, or combustion device, then the TRE
index value for the vent must be calculated based on the properties of
the vent stream (including the contributions of the dryer). If a dryer
is manifolded with other vents and not routed to a recovery,
recapture, or combustion device, then the TRE index value must be
calculated excluding the contributions of the dryer. The TRE index
value for the dryer must be calculated separately in this case.\d\ The mass emission rate of halogen atoms contained in organic
compounds is determined according to the procedures specified in Sec.
63.1104(i).\e\ The weight-percent organic HAP is determined for equipment according
to procedures specified in Sec. 63.1107.
Table 6 to Sec. 63.1103(d)--What are My Requirements If I Own or
Operate a Polycarbonate Production New Affected Source?------------------------------------------------------------------------
If you own or operate. . . And if. . . Then you must. . .------------------------------------------------------------------------1. A storage vessel with: 38 13.1 kilopascals a. Reduce emissions
cubic meters <=capacity <=maximum true of total organic
<151 cubic meters. vapor pressure of HAP by 95 weight-
total organic HAP percent by venting
<76.6 kilopascals. emissions through a
closed vent system
to any combination
of control devices
meeting the
requirements of
subpart SS
(national emission
standards for
closed vent
systems, control
devices, recovery
devices, and
routing to a fuel
gas system or a
process), as
specified in Sec.
63.982(a)(1)
(storage vessel
requirements) of
this part; or
b. Comply with the
requirements of
subpart WW
(national emission
standards for
storage vessels
(control level 2))
of this part.2. A storage vessel with: The maximum true Reduce emissions of
151 cubic meters <=capacity. vapor pressure of total organic HAP
total organic HAP by 98 weight-
is =5.2 percent by venting
kilopascals. emissions through a
closed vent system
to any combination
of control devices
meeting the
requirements of
subpart SS, as
specified in Sec.
63.982(a)(1)
(storage vessel
requirements) of
this part.3. A storage vessel with: 38 The maximum true Reduce emissions of
cubic meters <=capacity vapor pressure of total organic HAP
<151 cubic meters. total organic HAP by 95 weight-
is =76.6 percent by venting
kilopascals. emissions through a
closed vent system
to any combination
of control devices
meeting the
requirements of
subpart SS, as
specified in Sec.
63.982(a)(1)
(storage vessel
requirements) of
this part.4. A process vent from The vent stream has a. Reduce emissions
continuous unit operations a TRE \b\ \c\ <=9.6. of total organic
or a combined vent stream HAP by 98 weight-
\a\ (halogenated). percent, or reduce
total organic HAP
to a concentration
of 20 parts per
million by volume,
whichever is less
stringent, by
venting emissions
through a closed
vent system to any
combination of
control devices
meeting the
requirements of
subpart SS of this
part, as specified
in Sec.
63.982(c)(2) and
(e); and then vent
emissions from
those control
device(s) through a
closed vent system
to a halogen
reduction device
meeting the
requirements of
subpart SS, Sec.
63.994, that
reduces hydrogen
halides and
halogens by 99
weight-percent or
to less than 0.45
kilograms per
hour,\d\ whichever
is less stringent;
or
b. Reduce the
process vent
halogen atom mass
emission rate to
less than 0.45
kilograms per hour
by venting
emissions through a
closed vent system
to a halogen
reduction device
meeting the
requirements of
subpart SS of this
part, Sec.
63.994; and then
vent emissions from
those control
device(s) through a
closed vent system
to any combination
of control devices
meeting the
requirements of
subpart SS, as
specified in Sec.
63.982(c)(2) and
(e), that reduces
emissions of total
organic HAP by 98
weight-percent, or
reduce total
organic HAP or TOC
to a concentration
of 20 parts per
million by volume,
whichever is less
stringent; or
c. Achieve and
maintain a TRE
index value greater
than 9.6.
5. A process vent from The vent stream has a. Reduce emissions
continuous unit operations a TRE \b\ \c\ <= of total organic
or a combined vent stream 9.6. HAP by 98 weight-
\a\ (nonhalogenated). percent; or reduce
total organic HAP
to a concentration
of 20 parts per
million by volume;
whichever is less
stringent, by
venting emissions
through a closed
vent system to any
combination of
control devices
meeting the
requirements of
subpart SS of this
part, as specified
in Sec.
63.982(a)(2)
(process vent
requirements); or
b. Achieve and
maintain a TRE
index value greater
than 9.6.6. Equipment as defined The equipment a. Comply with
under Sec. 63.1101 (with contains or either Sec.
the differences for contacts =5 weight- 63.1027 for
described in item 6 below). percent total connectors in gas
organic HAP \e\, and vapor service
and operates =300 hours service, and comply
per year. with the
requirements of
subpart UU of this
part, except Sec.
63.1030, for all
other applicable
equipment; or
b. Comply with the
requirements in
subpart H of this
part, except Sec.
63.165, as provided
by the regulatory
overlap provisions
in Sec.
63.1100(g)(4)(ii).7. Pressure relief devices.. The pressure relief Comply with Sec.
device is in 63.1107(e).
organic HAP service.------------------------------------------------------------------------\a\ Combined vent streams shall use the applicability determination
procedures and methods for process vents from continuous unit
operations (Sec. 63.1104).\b\ The TRE equation coefficients for halogenated streams (Table 1 of
Sec. 63.1104(j)(1) of this subpart) shall be used to calculate the
TRE index value.\c\ The TRE is determined according to the procedures specified in Sec.
63.1104(j). If a dryer is manifolded with such vents, and the vent is
routed to a recovery, recapture, or combustion device, then the TRE
index value for the vent must be calculated based on the properties of
the vent stream (including the contributions of the dryer). If a dryer
is manifolded with other vents and not routed to a recovery,
recapture, or combustion device, then the TRE index value must be
calculated excluding the contributions of the dryer. The TRE index
value for the dryer must be calculated separately in this case.\d\ The mass emission rate of halogen atoms contained in organic
compounds is determined according to the procedures specified in Sec.
63.1104(i).\e\ The weight-percent organic HAP is determined for equipment according
to procedures specified in Sec. 63.1107.
(e) Ethylene production applicability, definitions, and requirements--(1) Applicability--(i) Affected source. For the ethylene production (as defined in paragraph (e)(2) of this section) source category, the affected source shall comprise all emission points listed in paragraphs (e)(1)(i) (A) through (G) of this section that are associated with an ethylene production unit that is located at a major source, as defined in section 112(a) of the Act.
(1) Applicability--(i) Affected source. For the ethylene production (as defined in paragraph (e)(2) of this section) source category, the affected source shall comprise all emission points listed in paragraphs (e)(1)(i) (A) through (G) of this section that are associated with an ethylene production unit that is located at a major source, as defined in section 112(a) of the Act.
(i) Affected source. For the ethylene production (as defined in paragraph (e)(2) of this section) source category, the affected source shall comprise all emission points listed in paragraphs (e)(1)(i) (A) through (G) of this section that are associated with an ethylene production unit that is located at a major source, as defined in section 112(a) of the Act.
(A) All storage vessels (as defined in Sec. 63.1101) that store liquids containing organic HAP.
(B) All ethylene process vents (as defined in paragraph (e)(2) of this section) from continuous unit operations.
(C) All transfer racks (as defined in paragraph (e)(2) of this section) that load HAP-containing material.
(D) Equipment (as defined in Sec. 63.1101) that contains or contacts organic HAP.
(E) All waste streams (as defined in paragraph (e)(2) of this section) associated with an ethylene production unit.
(F) All heat exchange systems (as defined in paragraph (e)(2) of this section) associated with an ethylene production unit.
(G) All ethylene cracking furnaces and associated decoking operations.
(ii) Exceptions. The emission points listed in paragraphs (e)(1)(ii) (A) through (L) of this section are in the ethylene production source category but are not subject to the requirements of paragraph (e)(3) of this section.
(A) Equipment that is located within an ethylene production unit that is subject to this subpart but does not contain organic HAP.
(B) Stormwater from segregated sewers.
(C) Water from fire-fighting and deluge systems in segregated sewers.
(D) Spills.
(E) Water from safety showers.
(F) Water from testing of fire-fighting and deluge systems.
(G) Vessels storing organic liquids that contain organic HAP as impurities.
(H) Transfer racks, loading arms, or loading hoses that only transfer liquids containing organic HAP as impurities.
(I) Transfer racks, loading arms, or loading hoses that vapor balance during all transfer operations.
(J) Air emissions from all ethylene cracking furnaces, including emissions during decoking operations.
(K) Pressure vessels designed to operate in excess of 204.9 kilopascals and without emissions to the atmosphere.
(L) Vessels permanently attached to motor vehicles such as trucks, railcars, barges, or ships.
(iii) Exclusions. The provisions of this subpart do not apply to process units and emission points subject to subparts F, G, H, I and CC of this part.
(iv) Compliance schedule. The compliance schedule for the ethylene production source category is specified in Sec. 63.1102.
(2) Definitions. Ethylene process vent means a gas stream with a flow rate greater than 0.005 standard cubic meters per minute containing greater than 20 parts per million by volume HAP that is continuously discharged during operation of an ethylene production unit, as defined in this section. Ethylene process vents are gas streams that are discharged to the atmosphere (or the point of entry into a control device, if any) either directly or after passing through one or more recovery devices. Ethylene process vents do not include relief valve discharges; gaseous streams routed to a fuel gas system; leaks from equipment regulated under this subpart; episodic or nonroutine releases such as those associated with startup, shutdown, and malfunction; and in situ sampling systems (online analyzers).
Ethylene production or production unit means a chemical manufacturing process unit in which ethylene and/or propylene are produced by separation from petroleum refining process streams or by subjecting hydrocarbons to high temperatures in the presence of steam. The ethylene production unit includes the separation of ethylene and/or propylene from associated streams such as a C4 product, pyrolysis gasoline, and pyrolysis fuel oil. Ethylene production does not include the manufacture of SOCMI chemicals such as the production of butadiene from the C4 stream and aromatics from pyrolysis gasoline.
Heat exchange system means any cooling tower system or once-through cooling water system (e.g., river or pond water). A heat exchange system can include an entire recirculating or once-through cooling system.
Organic HAP means the compounds listed in Table 1 to subpart XX of this part.
Transfer rack means the collection of loading arms and loading hoses at a single loading rack that is used to fill tank trucks and/or railcars with organic HAP. Transfer rack includes the associated pumps, meters, shutoff valves, relief valves, and other piping and valves. Transfer rack does not include racks, arms, or hoses that contain organic HAP only as impurities; or racks, arms, or hoses that vapor balance during all loading operations.
Waste means any material resulting from industrial, commercial, mining, or agricultural operations, or from community activities, that is discarded or is being accumulated, stored, or physically, chemically, thermally, or biologically treated prior to being discarded, recycled, or discharged.
Waste stream means the waste generated by a particular process unit, product tank, or waste management unit. The characteristics of the waste stream (e.g., flow rate, HAP concentration, water content) are determined at the point of waste generation. Examples of a waste stream include process wastewater, product tank drawdown, sludge and slop oil removed from waste management units, and landfill leachate.
(3) Requirements. The owner or operator must control organic HAP emissions from each affected source emission point by meeting the applicable requirements specified in Table 7 to this section. An owner or operator must perform the applicability assessment procedures and methods for process vents specified in Sec. 63.1104, except for paragraphs (d), (g), (h), (i), (j), (l)(1), and (n). An owner or operator must perform the applicability assessment procedures and methods for equipment leaks specified in Sec. 63.1107. General compliance, recordkeeping, and reporting requirements are specified in Sec. Sec. 63.1108 through 63.1112. Minimization of emissions from startup, shutdown, and malfunctions must be addressed in the startup, shutdown, and malfunction plan required by Sec. 63.1111; the plan must also establish reporting and recordkeeping of such events. Procedures for approval of alternate means of emission limitations are specified in Sec. 63.1113.
Table 7 to Sec. 63.1103(e)--What Are My Requirements if I Own or
Operate an Ethylene Production Existing or New Affected Source?------------------------------------------------------------------------
(a) A storage vessel (as (1) The maximum true (i) Fill the vessel
defined in Sec. 63.1101) vapor pressure of through a submerged
that stores liquid total organic HAP pipe; or
containing organic HAP. is =3.4 (ii) Comply with the
kilopascals but requirements for
<76.6 kilopascals; storage vessels
and the capacity of with capacities =95 cubic
thn-eq>=4 cubic meters.
meters but <=95
cubic meters.(b) A storage vessel (as (1) The maximum true (i) Comply with the
defined in Sec. 63.1101) vapor pressure of requirements of
that stores liquid total organic HAP subpart WW of this
containing organic HAP. is =3.4 part; or
kilopascals but (ii) Reduce
<76.6 kilopascals; emissions of total
and the capacity of organic HAP by 98
the vessel is =95 cubic venting emissions
meters. through a closed
vent system to any
combination of
control devices and
meet the
requirements of
Sec.
63.982(a)(1).(c) A storage vessel (as (1) The maximum true (i) Reduce emissions
defined in Sec. 63.1101) vapor pressure of of total organic
that stores liquid total organic HAP HAP by 98 weight-
containing organic HAP. is =76.6 percent by venting
kilopascals. emissions through a
closed vent system
to any combination
of control devices
and meet the
requirements of
Sec.
63.982(a)(1).(d) An ethylene process vent (1) The process vent (i) Reduce emissions
(as defined in paragraph is at an existing of organic HAP by
(e)(2) of this section). source and the vent 98 weight-percent;
(2) of this section). source and the vent 98 weight-percent;
stream has a flow or reduce organic
rate =0.011 scmm and concentration of 20
a total organic HAP parts per million
concentration =50 parts whichever is less
per million by stringent, by
volume; or the venting emissions
process vent is at through a closed
a new source and vent system to any
the vent stream has combination of
a flow rate =0.008 scmm and meet the
a total organic HAP requirements
concentration =30 parts 63.982(b) and
per million by (c)(2).
volume.(e) A transfer rack (as (1) Materials loaded (i) Reduce emissions
defined in paragraph (e)(2) have a true vapor of organic HAP by
of this section). pressure of total 98 weight-percent;
organic HAP =3.4 kilopascals HAP or TOC to a
and =76 concentration of 20
cubic meters per parts per million
day (averaged over by volume;
any consecutive 30- whichever is less
day period) of HAP- stringent, by
containing material venting emissions
is loaded. through a closed
vent system to any
combination of
control devices as
specified in Sec.
63.1105; or
(ii) Install process
piping designed to
collect the HAP-
containing vapors
displaced from tank
trucks or railcars
during loading and
to route it to a
process, a fuel gas
system, or a vapor
balance system, as
specified in Sec.
63.1105.(f) Equipment (as defined in (1) The equipment Comply with the
Sec. 63.1101) that contains or requirements of
contains or contacts contacts =5 weight- part.
percent organic
HAP; and the
equipment is not in
vacuum service.(g) Processes that generate (1) The waste stream (i) Comply with the
waste (as defined in contains any of the waste requirements
paragraph (e)(2) of this following HAP: of subpart XX of
section. benzene, cumene, this part. For
ethyl benzene, ethylene
hexane, manufacturing
naphthalene, process unit waste
styrene, toluene, o- stream
xylene, m-xylene, p- requirements, terms
xylene, or 1,3- have the meanings
butadiene. specified in
subpart XX.(h) A heat exchange system .................... Comply with the heat
(as defined in paragraph exchange system
(e)(2) of this section). requirements of
(2) of this section). requirements of
subpart XX of this
part.------------------------------------------------------------------------
(f) Carbon black production applicability, definitions, and requirements--(1) Applicability--(i) Affected source. For the carbon black production source category (as defined in paragraph (f)(2) of this section), the affected source shall comprise each carbon black production process unit located at a major source, as defined in section 112(a) of the Act. The affected source for the carbon black production source category includes all waste management units, maintenance wastewater, and equipment components that contain or contact HAP that are associated with the carbon black production process unit.
(1) Applicability--(i) Affected source. For the carbon black production source category (as defined in paragraph (f)(2) of this section), the affected source shall comprise each carbon black production process unit located at a major source, as defined in section 112(a) of the Act. The affected source for the carbon black production source category includes all waste management units, maintenance wastewater, and equipment components that contain or contact HAP that are associated with the carbon black production process unit.
(i) Affected source. For the carbon black production source category (as defined in paragraph (f)(2) of this section), the affected source shall comprise each carbon black production process unit located at a major source, as defined in section 112(a) of the Act. The affected source for the carbon black production source category includes all waste management units, maintenance wastewater, and equipment components that contain or contact HAP that are associated with the carbon black production process unit.
(ii) Compliance schedule. The compliance schedule for the carbon black production and acetylene decomposition carbon black production affected sources, as defined in paragraph (f)(1)(i) of this section, is specified in Sec. 63.1102.
(2) Definitions. Carbon black production means the production of carbon black by either the furnace, thermal, acetylene decomposition, or lampblack processes.
Carbon black production unit means the equipment assembled and connected by hard-piping or duct work to process raw materials to manufacture, store, and transport a carbon black product. For the purposes of this subpart, a carbon black production process unit includes reactors and associated operations; associated recovery devices; and any feed, intermediate and product storage vessels, product transfer racks, and connected ducts and piping. A carbon black production process unit includes pumps, compressors, agitators, pressure relief devices, sampling connection systems, open-ended valves or lines, valves, connectors, instrumentation systems, and control devices or systems.
Dryer means a rotary-kiln dryer that is heated externally and is used to dry wet pellets in the wet pelletization process.
Main unit filter means the filter that separates the carbon black from the tailgas.
Process filter means the filter that separates the carbon black from the conveying air.
Purge filter means the filter that separates the carbon black from the dryer exhaust.
(3) Requirements. (i) Table 8 to this section specifies the carbon black production standards applicability for existing and new sources. Applicability assessment procedures and methods are specified in Sec. 63.1104. An owner or operator of an affected source is not required to perform applicability tests or other applicability assessment procedures if they opt to comply with the most stringent requirements for an applicable emission point pursuant to this subpart. General compliance, recordkeeping, and reporting requirements are specified in Sec. Sec. 63.1108 through 63.1112. Procedures for approval of alternative means of emission limitations are specified in Sec. 63.1113.
(i) Table 8 to this section specifies the carbon black production standards applicability for existing and new sources. Applicability assessment procedures and methods are specified in Sec. 63.1104. An owner or operator of an affected source is not required to perform applicability tests or other applicability assessment procedures if they opt to comply with the most stringent requirements for an applicable emission point pursuant to this subpart. General compliance, recordkeeping, and reporting requirements are specified in Sec. Sec. 63.1108 through 63.1112. Procedures for approval of alternative means of emission limitations are specified in Sec. 63.1113.
(ii) Pressure relief devices used to protect against overpressure in the case of catastrophic failure of your process filter system are exempt from the closed vent system inspection requirements of Sec. 63.983(b) and (c). Exempt pressure relief devices must be designated and identified in your Notification of Compliance Status report.
Table 8 to Sec. 63.1103(f)--What Are My Requirements if I Own or
Operate a Carbon Black Production Existing or New Affected Source?------------------------------------------------------------------------
(a) A carbon black (1) The HAP (i) Reduce emissions
production main unit filter concentration of of HAP by using a
process vent. the emission stream flare meeting the
is equal to or requirements of
greater than 260 subpart SS of this
parts per million part; or
by volume \a\. (ii) Reduce
emissions of total
HAP by 98 weight-
percent or to a
concentration of 20
parts per million
by volume,
whichever is less
stringent, by
venting emissions
through a closed
vent system to any
combination of
control devices
meeting the
requirements of
Sec.
63.982(a)(2).------------------------------------------------------------------------\a\ The weight-percent organic HAP is determined according to the
procedures specified in Sec. 63.1104(e).
(g) Cyanide chemicals manufacturing applicability, definitions, and requirements--(1) Applicability--(i) Affected source. For the cyanide chemicals manufacturing source category, the affected source shall include each cyanide chemicals manufacturing process unit located at a major source, as defined in section 112(a) of the Act. The affected source shall also include all waste management units, maintenance wastewater, and equipment (as defined in Sec. 63.1101) that contain or contact cyanide chemicals that are associated with the cyanide chemicals manufacturing process unit.
(1) Applicability--(i) Affected source. For the cyanide chemicals manufacturing source category, the affected source shall include each cyanide chemicals manufacturing process unit located at a major source, as defined in section 112(a) of the Act. The affected source shall also include all waste management units, maintenance wastewater, and equipment (as defined in Sec. 63.1101) that contain or contact cyanide chemicals that are associated with the cyanide chemicals manufacturing process unit.
(i) Affected source. For the cyanide chemicals manufacturing source category, the affected source shall include each cyanide chemicals manufacturing process unit located at a major source, as defined in section 112(a) of the Act. The affected source shall also include all waste management units, maintenance wastewater, and equipment (as defined in Sec. 63.1101) that contain or contact cyanide chemicals that are associated with the cyanide chemicals manufacturing process unit.
(ii) Compliance schedule. The compliance schedule for the affected source, as defined in paragraph (f)(1)(i) of this section, is specified in Sec. 63.1102.
(2) Definitions. Andrussow process unit means a process unit that produces hydrogen cyanide by reacting methane and ammonia in the presence of oxygen over a platinum/rhodium catalyst. An Andrussow process unit begins at the point at which the raw materials are stored and ends at the point at which refined hydrogen cyanide is reacted as a raw material in a downstream process, burned on-site as fuel in a boiler or industrial furnace, or is shipped offsite. If raw hydrogen cyanide from the reactor is reacted with sodium hydroxide to form sodium cyanide prior to the refining process, the unit operation where sodium cyanide is formed is considered to be part of the Andrussow process unit.
Blausaure Methane Anlage (BMA) process unit means a process unit that produces hydrogen cyanide by reacting methane and ammonia over a platinum catalyst. A BMA process unit begins at the point at which raw materials are stored and ends at the point at which refined hydrogen cyanide is reacted as a raw material in a downstream process, burned on-site as a fuel in a boiler or industrial furnace, or is shipped offsite. If raw hydrogen cyanide from the reactor is reacted with sodium hydroxide to form sodium cyanide prior to the refining process, the unit operation where sodium cyanide is formed is considered to be part of the BMA process unit.
Byproduct means a chemical that is produced coincidentally during the production of another chemical.
Cyanide chemicals manufacturing process unit or CCMPU means the equipment assembled and connected by hard-piping or duct work to process raw materials to manufacture, store, and transport a cyanide chemicals product. A cyanide chemicals manufacturing process unit shall be limited to any one of the following: an Andrussow process unit, a BMA process unit, a sodium cyanide process unit, or a Sohio hydrogen cyanide process unit. For the purpose of this subpart, a cyanide chemicals manufacturing process unit includes reactors and associated unit operations; associated recovery devices; and any feed, intermediate and product storage vessels, product transfer racks, and connected ducts and piping. A cyanide chemicals manufacturing process unit includes pumps, compressors, agitators, pressure relief devices, sampling connection systems, open-ended valves or lines, valves, connectors, instrumentation systems, and control devices or systems.
Cyanide chemicals product means either hydrogen cyanide, potassium cyanide, or sodium cyanide which is manufactured as the intended product of a CCMPU or a byproduct of the Sohio process. Other hydrogen cyanide, potassium cyanide, or sodium cyanide byproducts, impurities, wastes, and trace contaminants are not considered to be cyanide chemicals products.
Dry-end process vent means a process vent originating from the drum filter or any other unit operation in the dry end of a sodium cyanide manufacturing process unit. For the purposes of this subpart, the dry end of the sodium cyanide process unit begins in the unit operation where water is removed from the sodium cyanide, usually in the drum filter, and ends when the sodium cyanide is used as a raw material in a downstream process, or is shipped offsite.
Organic HAP means, for purposes of applicability of the requirements of this subpart, all hydrogen cyanide compounds.
Raw hydrogen cyanide means hydrogen cyanide that has not been through the refining process. Raw hydrogen cyanide usually has a hydrogen cyanide concentration less than 10 percent.
Refined hydrogen cyanide means hydrogen cyanide that has been through the refining process. Refined hydrogen cyanide usually has a hydrogen cyanide concentration greater than 99 percent.
Refining process means the collection of equipment in a cyanide chemicals manufacturing processing unit used to concentrate raw hydrogen cyanide from a concentration around 10 percent or less to refined hydrogen cyanide at a concentration greater than 99 percent.
Sodium cyanide process unit means a process unit that produces sodium cyanide by reacting hydrogen cyanide and sodium hydroxide via the neutralization, or wet, process. A sodium cyanide process unit begins at the unit operation where refined hydrogen cyanide is reacted with sodium hydroxide and ends at the point the solid sodium cyanide product is shipped offsite or used as a raw material in a downstream process. If raw hydrogen cyanide is reacted with sodium hydroxide to form sodium cyanide prior to the hydrogen cyanide refining process, the unit operation where sodium cyanide is formed is not considered to be part of the sodium cyanide process unit. For this type of process, the sodium cyanide process unit begins at the point that the aqueous sodium cyanide stream leaves the unit operation where the sodium cyanide is formed. In situations where potassium hydroxide is substituted for sodium hydroxide to produce potassium cyanide, the process unit is still considered a sodium cyanide process unit.
Sohio hydrogen cyanide process unit means a process unit that produces hydrogen cyanide as a byproduct of the acrylonitrile production process when acrylonitrile is manufactured using the Sohio process. A Sohio hydrogen cyanide process unit begins at the point the hydrogen cyanide leaves the unit operation where the hydrogen cyanide is separated from the acrylonitrile (usually referred to as the heads column). The Sohio hydrogen cyanide process unit ends at the point refined hydrogen cyanide is reacted as a raw material in a downstream process, burned on-site as fuel in a boiler or industrial furnace, or is shipped offsite. If raw hydrogen cyanide is reacted with sodium hydroxide to form sodium cyanide prior to the refining process, the unit operation where sodium cyanide is formed is considered to be part of the Sohio hydrogen cyanide process unit.
Wet-end process vent means a process vent originating from the reactor, crystallizer, or any other unit operation in the wet end of the sodium cyanide process unit. For the purposes of this subpart, the wet end of the sodium cyanide process unit begins at the point at which the raw materials are stored and ends just prior to the unit operation where water is removed from the sodium cyanide, usually in the drum filter. Wastewater streams containing discarded wastewater from the sodium cyanide production process are not considered to be part of the wet-end sodium cyanide process. Discarded wastewater that is no longer used in the production process is considered to be process and/or maintenance wastewater. Vents from process and maintenance wastewater operations are not wet-end process vents.
(3) Requirements. Table 9 to this section specifies the cyanide chemicals manufacturing standards applicable to existing and new sources. Applicability assessment procedures and methods are specified in Sec. 63.1104. An owner or operator of an affected source is not required to perform applicability tests or other applicability assessment procedures if they opt to comply with the most stringent requirements for an applicable emission point pursuant to this subpart. General compliance, recordkeeping, and reporting requirements are specified in Sec. Sec. 63.1108 through 63.1112. Procedures for approval of alternative means of emission limitations are specified in Sec. 63.1113.
(4) Determination of overall HAP emission reduction for a process unit. (i) The owner or operator shall determine the overall HAP emission reduction for process vents in a process unit using Equation 1 of this section. The overall organic HAP emission reduction shall be determined for all process vents in the process unit. [GRAPHIC] [TIFF OMITTED] TR12JY02.015 Where: REDCCMPU = Overall HAP emission reduction for the group of
process vents in the CCMPU, percent.Eunc,i=Uncontrolled HAP emissions from process vent i that is
controlled by using a combustion, recovery, or recapture
device, kg/yr.n=Number of process vents in the process unit that are controlled by
using a combustion, recovery, or recapture device.Ri = Control efficiency of the combustion, recovery, or
recapture device used to control HAP emissions from vent i,
determined in accordance with paragraph (g)(4)(ii) of this
section.Eunc,j=Uncontrolled HAP emissions from process vent j that is
not controlled by using a combustion, recovery, or recapture
device, kg/yr.m=Number of process vents in the process unit that are not controlled by
using a combustion, recovery, or recapture device.
(ii) The control efficiency shall be assigned as specified in paragraph (g)(4)(ii) (A) or (B) of this section.
(A) If the process vent is controlled using a flare in accordance with the provisions of Sec. 63.987, or a combustion device in accordance with the provisions of Sec. 63.988(b)(2), for which a performance test has not been conducted, the control efficiency shall be assumed to be 98 weight-percent. For hydrogen-fueled flares, an owner or operator may use a control efficiency greater than 98 weight-percent if they can provide engineering calculations and supporting information demonstrating a greater control efficiency.
(B) If the process vent is controlled using a combustion, recovery, or recapture device for which a performance test has been conducted in accordance with the provisions of Sec. 63.997, the control efficiency shall be the efficiency determined by the performance test.
(5) Source category specific modifications to testing procedures. (i) When identifying equipment subject to any equipment leak requirements, an owner or operator is allowed to designate specific components of such equipment as never being safe to monitor with their Notification of Compliance Status report and periodic compliance reports. In order for an owner or operator to designate such equipment as never being safe to monitor, they must certify that monitoring such equipment at any time the CCMPU is operating is never safe (e.g., monitoring this equipment would present an unreasonable hazard or preclude testing personnel from meeting emergency evacuation requirements). If it is demonstrated to the Administrator's satisfaction that equipment designated by the owner or operator as never safe to monitor is appropriately designated, an owner or operator will not be required to monitor such equipment.
(i) When identifying equipment subject to any equipment leak requirements, an owner or operator is allowed to designate specific components of such equipment as never being safe to monitor with their Notification of Compliance Status report and periodic compliance reports. In order for an owner or operator to designate such equipment as never being safe to monitor, they must certify that monitoring such equipment at any time the CCMPU is operating is never safe (e.g., monitoring this equipment would present an unreasonable hazard or preclude testing personnel from meeting emergency evacuation requirements). If it is demonstrated to the Administrator's satisfaction that equipment designated by the owner or operator as never safe to monitor is appropriately designated, an owner or operator will not be required to monitor such equipment.
(ii) For process vent hydrogen cyanide emissions that are vented to a control device other than a flare during startup, shutdown, and malfunction, the design evaluation must include documentation that the control device being used achieves the required control efficiency during the reasonably expected maximum flow rate and emission rate during startup, shutdown, and malfunction.
(iii) If a facility controls process vent emissions during startup, shutdown, and malfunction by using a flare, an owner or operator is not required to perform flow rate and heat content testing as specified in Sec. 63.987(b)(3)(ii) and (iii). In lieu of performing flow rate and heat content testing, an owner or operator is required to submit engineering calculations that substantiate that a flare meets the applicable heat content or flow rates, or provide data from a compliance assessment that the flare is in compliance under worst case conditions (e.g., maximum operating conditions).
(iv) If flare velocity and net heating value testing, as specified in Sec. 63.11(b)(6)(ii) and (b)(7)(i), would create an unreasonable hazard for testing personnel, an owner or operator is allowed to submit engineering calculations that substantiate vent stream velocity and heat content of a flare in lieu of test data. These calculations are required to be submitted with the facilities' compliance test notification report for approval by the Administrator.
(v) The data from any performance test method used to measure HCN concentrations must be validated using EPA Method 301 (40 CFR part 63, appendix A).
Table 9 to Sec. 63.1103(g)--What Are My Requirements if I Own or
Operate a Cyanide Chemicals Manufacturing Existing or New Affected
Source?------------------------------------------------------------------------
(a) A storage vessel........ (1) The storage (i) Reduce emissions
(1) The storage (i) Reduce emissions
vessel contains of hydrogen cyanide
refined hydrogen by using a flare
cyanide. meeting the
requirements of
Sec. 63.982(b);
or
(ii) Reduce
emissions of
hydrogen cyanide by
98 weight-percent,
or to a
concentration of 20
parts per million
by volume, by
venting emissions
through a closed
vent system to any
combination of
control devices
meeting the
requirements of
Sec. 63.982(c)(1)
(i) Reduce overall
continuous unit operations annual emissions of
in an Andrussow, BMA, or total HAP from the
Sohio hydrogen cyanide collection of
process unit. process vents from
continuous unit
operations in the
process by 98
weight-percent in
accordance with
paragraph (g)(4) of
this section. Any
control device used
to reduce emissions
from one or more
process vents from
continuous unit
operations in the
process unit must
meet the applicable
requirements
specified in Sec.
63.982(a)(2); or
(ii) Reduce
emissions of total
HAP from each
process vent from a
continuous unit
operation in the
process unit by
using a flare
meeting the
requirements
specified in Sec.
63.982(b); or
(iii) Reduce
emissions of total
HAP from each
process vent from a
continuous unit
operation in the
process unit by 98
weight-percent or
to a concentration
of 20 parts per
million by volume,
by venting
emissions through a
closed vent system
to any combination
of control devices
meeting the
requirements of
Sec. 63.982(c)(2)
(i) Reduce overall
process vents, as defined annual emissions of
in paragraph (g)(2) of this total HAP from the
section, in a sodium collection of
cyanide process unit. process vents from
continuous unit
operations in the
process unit by 98
weight-percent in
accordance with
paragraph (g)(4) of
this section. Any
control device used
to reduce emissions
from one or more
process vents from
continuous unit
operations in the
process unit must
meet the applicable
requirements of
Sec.
63.982(a)(2); or
(ii) Reduce
emissions of total
HAP from each wet-
end process vent in
the process unit by
using a flare
meeting the
requirements of
Sec. 63.982(b);
or
(iii) Reduce
emissions of total
HAP from each wet-
end process vent by
98 weight-percent,
or to a
concentration of 20
parts per million
by volume, by
venting emissions
through a closed
vent system and any
combination of
control devices
meeting the
requirements of
Sec. 63.982(c)(2)
(i) Reduce overall
process vents, as defined annual emissions of
in paragraph (g)(2) of this sodium cyanide from
section, in a sodium the collection of
cyanide process unit. process vents from
continuous unit
operations in the
process unit by 98
weight-percent in
accordance with
paragraph (g)(4) of
this section. Any
control device used
to reduce emissions
from one or more
process vents from
continuous unit
operations in the
process unit must
meet the applicable
requirements of
Sec.
63.982(a)(2); or
(ii) Reduce
emissions of sodium
cyanide from each
dry-end process
vent in the process
unit by 98 weight-
percent by venting
emissions through a
closed vent system
to any combination
of control devices
meeting the
requirements of
Sec. 63.982(c)(2)
(1) The transfer (i) Reduce emissions
rack is used to of hydrogen cyanide
load refined by using a flare
hydrogen cyanide meeting the
into tank trucks requirements of
and/or rail cars. Sec. 63.982(b);
or
(ii) Reduce
emissions of
hydrogen cyanide by
98 weight-percent,
or to a
concentration of 20
parts per million
by volume,
whichever is less
stringent, by
venting emissions
through a closed
vent system to any
combination of
control devices
meeting the
requirements
specified in Sec.
63.982(c)(1),
(c)(2), or (d).(f) A new cyanide chemicals (1) The process (i) Achieve a
(2), or (d).(f) A new cyanide chemicals (1) The process (i) Achieve a
manufacturing process unit wastewater is from combined removal
that generates process HCN purification, and control of HAP
wastewater. ammonia from wastewater of
purification, or 93 weight-percent.
flare blowdown.(g) A cyanide chemicals (1) The maintenance (i) Comply with the
manufacturing process unit wastewater contains requirements of
that generates maintenance hydrogen cyanide or Sec. 63.1106(b).
wastewater. acetonitrile.(h) An item of equipment (1) The item of (i) Comply with the
listed in Sec. equipment meets the requirements in
63.1106(c)(1) that criteria specified Table 35 of subpart
transports or contains in Sec. G of this part.
wastewater liquid streams 63.1106(c)(1)
from a cyanide chemicals through (3) and
manufacturing process unit. either (c)(4)(i) or
(ii).(i) Equipment, as defined (1) The equipment (i) Comply with
under Sec. 63.1101. contains or either subpart TT
contacts hydrogen or UU of this part,
cyanide and and paragraph
operates equal to (g)(5) of this
or greater then 300 section, with the
hours per year. exception that open-
ended lines that
contain or contact
hydrogen cyanide
are exempt from any
requirements to
install a cap,
plug, blind flange,
or second valve to
be capped.------------------------------------------------------------------------
(h) Spandex production applicability, definitions, and requirements--(1) Applicability--(i) Affected source. For the spandex production (as defined in paragraph (h)(2) of this section) source category, the affected source shall comprise all emission points listed in paragraphs (h)(1)(i)(A) through (C) of this section that are associated with a spandex production process unit located at a major source, as defined in section 112(a) of the Act.
(1) Applicability--(i) Affected source. For the spandex production (as defined in paragraph (h)(2) of this section) source category, the affected source shall comprise all emission points listed in paragraphs (h)(1)(i)(A) through (C) of this section that are associated with a spandex production process unit located at a major source, as defined in section 112(a) of the Act.
(i) Affected source. For the spandex production (as defined in paragraph (h)(2) of this section) source category, the affected source shall comprise all emission points listed in paragraphs (h)(1)(i)(A) through (C) of this section that are associated with a spandex production process unit located at a major source, as defined in section 112(a) of the Act.
(A) All process vents (as defined in Sec. 63.1101).
(B) All storage vessels (as defined in Sec. 63.1101) that store liquids containing organic HAP.
(C) All spandex fiber spinning lines using a spinning solution having organic HAP.
(ii) Exceptions. The emission points listed in paragraphs (h)(1)(ii)(A) and (B) of this section are in the spandex production source category but are not subject to the requirements of paragraph (h)(3) of this section.
(A) Equipment that is located within a spandex production process unit that is subject to this subpart but does not contain organic HAP.
(B) Vessels storing organic liquids that contain organic HAP as impurities.
(C) Emission points listed in paragraphs (h)(1)(i)(A) through (C) of this section that are associated with a dry spinning spandex production process unit.
(iii) Compliance schedule. The compliance schedule for affected sources, as defined in paragraph (h)(1)(i) of this section, is specified in paragraph (b) of Sec. 63.1102.
(2) Definitions. Dry spinning means a fiber-forming process where prepolymer is reacted with a chain-extender to generate polymer prior to spinning; the polymer is dissolved in a solvent and is extruded into a cell of hot gases for fiber formation.
Fiber spinning line means the group of equipment and process vents associated with spandex fiber spinning operations. The fiber spinning line includes the blending and dissolving tanks, spinning solution filters, spinning units, spin bath tanks, and the equipment used downstream of the spin bath to wash, draw, or dry on the wet belt the spun fiber.
Reaction spinning means a fiber-forming process where prepolymer is extruded into a spin bath that contains a chain-extender; the chemical reaction to make polymer occurs simultaneously with extrusion/fiber formation.
Spandex or spandex fiber means a manufactured synthetic fiber in which the fiber-forming substance is a long-chain polymer comprised of at least 85 percent by mass of a segmented polyurethane.
Spandex production means the production of synthetic spandex fibers.
Spandex production process unit means a process unit that is specifically used for the production of synthetic spandex fibers.
(3) Requirements. Table 10 to this section specifies the spandex production source category requirements for new and existing sources. An owner or operator must perform the applicability assessment procedures and methods for process vents specified in Sec. 63.1104, excluding paragraphs (b)(1), (d), (g), (h), (i), (j), (l)(1), and (n). General compliance, recordkeeping, and reporting requirements are specified in Sec. Sec. 63.1108 through 63.1112. Minimization of emissions from startup, shutdown, and malfunctions must be addressed in the startup, shutdown, and malfunction plan required by Sec. 63.1111; the plan must also establish reporting and recordkeeping of such events. Procedures for approval of alternate means of emission limitations are specified in Sec. 63.1113.
Table 10 to Sec. 63.1103(h)--What Are My Requirements if I Own or
Operate a Spandex Production Process Unit at a New or Existing Source?------------------------------------------------------------------------
(a) A storage vessel (as (1) The maximum true (i) Comply with the
defined in Sec. 63.1101) vapor pressure of requirements of
that stores liquid the organic HAP is subpart WW of this
containing organic HAP. =3.4 part; or
kilopascals; and (ii) Reduce
the capacity of the emissions of
vessel is =47 cubic meters. weight-percent by
venting emissions
in through a closed
vent system to any
combination of
control devices
meeting the
requirements of
subpart SS of this
part, as specified
in Sec.
63.982(a)(1).
(b) A process vent.......... .................... Reduce emissions of
organic HAP by 95
weight-percent, or
reduce organic HAP
or TOC to a
concentration of 20
parts per million
by volume,
whichever is less
stringent, by
venting emissions
through a closed
vent system to any
combination of
control devices
meeting the
requirements of
Sec.
63.982(a)(2).(c) A fiber spinning line... .................... Operate the fiber
spinning line such
that emissions are
captured and vented
through a line
closed vent system
to a control device
that complies with
the requirements of
Sec.
63.982(a)(2). If a
control device
other than a flare
is used, HAP
emissions must be
reduced by 95
weight-percent, or
total organic HAP
or TOC must be
reduced to a
concentration of 20
parts per million
by volume,
whichever is less
stringent.------------------------------------------------------------------------ [64 FR 34921, June 29, 1999, as amended at 64 FR 63699, 63706, Nov. 22, 1999; 64 FR 71852, Dec. 22, 1999; 66 FR 55847, Nov. 2, 2001; 67 FR 39305, June 7, 2002; 67 FR 46281, July 12, 2002; 67 FR 46293, July 12, 2002; 70 FR 19272, Apr. 13, 2005; 79 FR 60922, Oct. 8, 2014]